KR100215312B1 - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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KR100215312B1
KR100215312B1 KR1019960000685A KR19960000685A KR100215312B1 KR 100215312 B1 KR100215312 B1 KR 100215312B1 KR 1019960000685 A KR1019960000685 A KR 1019960000685A KR 19960000685 A KR19960000685 A KR 19960000685A KR 100215312 B1 KR100215312 B1 KR 100215312B1
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liquid crystal
color filter
transparent electrode
substrate
film
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KR1019960000685A
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KR960029842A (en
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도시유끼 데시로기
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가타오카 마사타카
알프스 덴키 가부시키가이샤
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133345Insulating layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133357Planarisation layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • G02F1/133519Overcoatings

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Optical Filters (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

본 발명은 구조가 간단하고 저렴하게 제조할 수 있고, 또 표시품질도 양호한 칼라필터 액정표시장치를 제공한다.The present invention provides a color filter liquid crystal display device which is simple in structure, can be manufactured at low cost, and has good display quality.

칼라필터 기판(1)과 대향기판(2)과 이들 양 기판(1),(2)사이에 충전된 액정(3)으로 액정표시장치를 구성한다. 칼라필터 기판을 투명기판(4)과 그 투명기판의 편면에 형성된 투명전극(5)과 그 투명전극상에 전착된 칼라필터(6)와 그 칼라필터의 간극부에 형성된 차광막(7)과 이들 칼라필터 (6) 및 차광막(7)의 표면에 피착된 무기 유전체 막(9)과 그 무기 유전체 막상에 피착된 투명전극막(10)으로 구성한다. 한편, 대향기판(2)은 투명기판(11)과 그 투명기판의 편면에 피착된 투명전극(12)으로 구성한다. 액정(3)으로서는, 액정분자 장축이 투명전극(10),(12)사이에서 90°연속적으로 비틀리는 네마틱액정을 충전한다.The liquid crystal display device is constituted by the color filter substrate 1, the opposing substrate 2, and the liquid crystal 3 filled between the substrates 1 and 2, respectively. The color filter substrate is formed of the transparent substrate 4, the transparent electrode 5 formed on one side of the transparent substrate, the color filter 6 electrodeposited on the transparent electrode, and the light shielding film 7 formed in the gap portion of the color filter. It consists of the inorganic dielectric film 9 deposited on the surface of the color filter 6 and the light shielding film 7, and the transparent electrode film 10 deposited on the inorganic dielectric film. On the other hand, the counter substrate 2 is composed of a transparent substrate 11 and a transparent electrode 12 deposited on one side of the transparent substrate. As the liquid crystal 3, the liquid crystal molecule long axis is filled with a nematic liquid crystal in which the transparent electrodes 10 and 12 are twisted continuously by 90 degrees.

Description

액정표시장치LCD Display

제 1도는 본 발명에 의한 일 실시예에 관계되는 액정표시장치의 요부단면도이고,1 is a cross-sectional view of main parts of a liquid crystal display device according to an embodiment of the present invention;

제 2 도는 종래예의 액정표시장치의 요부단면도이다.2 is a sectional view showing the main parts of a conventional liquid crystal display device.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1 : 칼라필터 기판 2 : 대향기판1 color filter substrate 2 counter substrate

3 : 액정(TN액정) 4 : 투명기판3: liquid crystal (TN liquid crystal) 4: transparent substrate

5 : 투명전극 6 : 칼라필터5 transparent electrode 6 color filter

7 : 차광막 9 : 무기 유전체 막7: light shielding film 9: inorganic dielectric film

10 : 투명전극막 11 : 투명기판10 transparent electrode film 11 transparent substrate

12 : 투명전극12: transparent electrode

본 발명은 칼라표시의 액정표시장치에 관한 것으로, 특히 칼라필터가 형성되는 칼라필터 기판의 구성에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color display liquid crystal display device, and more particularly, to a configuration of a color filter substrate on which a color filter is formed.

제 2 도에, 종래부터 알려져 있는 풀칼라 액정표시장치의 구성예를 나타낸다.2 shows a configuration example of a conventional full-color liquid crystal display device.

이 도면으로부터 명확한 바와 같이, 본 예의 액정표시장치는 칼라필터 기판(21)과 대향기판(22)과, 이들의 양 기판(21),(22)사이에 충전된 액정(23)으로 주로 구성되어 있다.As is clear from this figure, the liquid crystal display device of this example is mainly composed of a color filter substrate 21, an opposing substrate 22, and a liquid crystal 23 filled between the two substrates 21, 22 thereof. have.

칼라필터 기판(21)은 투명기판(24)과 그 투명기판(24)의 편면에 형성된 투명전극(25)과 그 투명전극(25)상에 전착된 칼라필터(26)와 그 칼라필터(26)의 간극부에 형성된 차광막(27)과 이들 칼라필터(26) 및 차광막(27)의 표면에 피착된 평탄화막(28)과 그 평탄화막(28)상에 적층된 무기 유전체 막(29)과 그 무기 유전체 막(29)상에 피착된 투명전극막(30)으로 이루어진다. 한편, 대향기판(22)은 투명기판(31)과 그 투명기판(31)의 편면에 형성된 투명전극(32)으로 이루어진다.The color filter substrate 21 includes a transparent substrate 24, a transparent electrode 25 formed on one side of the transparent substrate 24, a color filter 26 electrodeposited on the transparent electrode 25, and the color filter 26. Shading film 27 formed in the gap portion of the < RTI ID = 0.0 >) < / RTI > and the planarization film 28 deposited on the surface of the color filter 26 and the light shielding film 27, and the inorganic dielectric film 29 laminated on the planarization film 28; The transparent electrode film 30 deposited on the inorganic dielectric film 29 is formed. On the other hand, the counter substrate 22 is composed of a transparent substrate 31 and a transparent electrode 32 formed on one side of the transparent substrate 31.

평탄화막(28)은 칼라필터(26) 및 차광막(27)의 표면을 평활하게 하여 투명전극막(30),(32)사이의 간극(갭 간극)을 일정하게 하고, 색상 얼룩이나 표시 얼룩 그것에 리스폰스 얼룩을 개선하기 위하여 설치된 것으로, 예를들면 폴리비닐 알코올이나 자외선 경화성 수지 등의 투명수지 재료에 의하여 형성된다. 이것에 대하여, 무기 유전체 막(29)은 투명전극막(30)의 밀착성 등을 개선하기 위하여 설치된 것으로, 예를들면 SiO2등의 투명한 무기유전체 의하여 형성된다.The planarization film 28 smoothes the surfaces of the color filter 26 and the light shielding film 27 to make the gaps (gap gaps) between the transparent electrode films 30 and 32 constant, so that color unevenness or display unevenness It is provided in order to improve response staining, and is formed by transparent resin materials, such as polyvinyl alcohol and an ultraviolet curable resin, for example. In contrast, the inorganic dielectric film 29 is provided to improve the adhesion of the transparent electrode film 30 and the like, and is formed of a transparent inorganic dielectric such as SiO 2 .

상기한 종래의 풀칼라 액정표시장치는 칼리필터(26) 및 차광막(27)을 형성한 후, 이들의 표면에 수지제인 평탄화막(28)과 무기 유전체 막(29)을 순차적으로 형성하지 않으면 안되므로 제조공정이 복잡하고, 제조비용이 비싸진다고 하는 문제가 있다.In the conventional full color liquid crystal display device, since the kali filter 26 and the light shielding film 27 are formed, the planarization film 28 and the inorganic dielectric film 29 made of resin must be sequentially formed on the surfaces thereof. There is a problem that the manufacturing process is complicated and the manufacturing cost is high.

본 발명은 이러한 종래 기술의 단점을 해결하기 위하여 행해진 것으로, 그 목적은 제조가 간단하고 저렴하게 제조할 수 있고, 또 표시품질도 양호한 풀칼라 액정표시장치를 제공하는데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the disadvantages of the prior art, and its object is to provide a full color liquid crystal display device which can be manufactured easily and inexpensively and has good display quality.

본 발명은 상기 목적을 달성하기 위하여 칼라필터 기판과 대향기판과의 사이에 액정을 충전하여 이루어지는 액정표시장치에 있어서, 상기칼라필터 기판으로서 칼라필터상에 직접 무기 유전체 막이 형성되고, 이무기 유전체 막상에 투명전극막이 형성된 것을 사용함과 동시에 이 칼라 필터 기판에 형성된 상기 투명전극막과 상기 대향기판에 형성된 투명전극 막과의 사이에, 액정분자 장축이 이들의 투명전극막 사이에서 90° 연속적으로 비틀리는 네마틱액정(TN액정)을 충전하는 구성으로 하였다.In the liquid crystal display device which fills a liquid crystal between a color filter substrate and an opposing board | substrate in order to achieve the said objective, an inorganic dielectric film is formed directly on a color filter as said color filter substrate, The liquid crystal molecule long axis is twisted 90 ° continuously between these transparent electrode films between the transparent electrode film formed on the color filter substrate and the transparent electrode film formed on the opposing substrate, while the transparent electrode film is formed. It was set as the structure which fills a tick liquid crystal (TN liquid crystal).

액정으로서 투명전극막 사이에 액정분자 장축이 180°내지 270°연속적으로 비틀리는 네마틱액정(STN액정)을 충전한 경우에는, 6㎛±0.02㎛라고 하는 엄밀함으로 갭간극을 조정하지 않으면 양호한 표시품질이 얻어지지 않기 때문에 필연적으로 칼라필터 및 차광막의 형성면에 평탄화막(28)이 필요해진다.When the nematic liquid crystal (STN liquid crystal) with a long axis of 180 ° to 270 ° is twisted continuously between transparent electrode films as a liquid crystal, the display is good unless the gap gap is adjusted with a stiffness of 6 µm ± 0.02 µm. Since quality is not obtained, the planarization film 28 is necessarily required on the surface of the color filter and the light shielding film.

이것에 대하여 본원 발명자 등의 연구에 의하면 TN액정을 충전한경우에는 칼라필터 및 차광막의 표면 거칠음 정도가 갭 간격의 변동에 의해서는 표시품질에 악영향을 미치지 않으므로 평탄화막이 불필요하다.On the other hand, according to the research of the inventors of the present invention, when the TN liquid crystal is filled, the surface roughness of the color filter and the light shielding film does not adversely affect the display quality due to the variation in the gap gap, so that the flattening film is unnecessary.

평탄화막을 생략하면, 제조공정이 현저히 간략화되므로 액정표시장치의 제조비용을 저감시킬 수 있다. 한편, 무기유전체막상에 투명전극막을 형성하므로 투명전극막의 밀착성이 열화되는 등 다른 문제를 일으키는 일도 없다.If the planarization film is omitted, the manufacturing process is greatly simplified, and thus the manufacturing cost of the liquid crystal display device can be reduced. On the other hand, since the transparent electrode film is formed on the inorganic dielectric film, the adhesiveness of the transparent electrode film is not deteriorated.

[실시예]EXAMPLE

이하, 본 발명의 일 실시예를 제 1 도에 기초하여 설명한다. 이 도면으로부터 명확한 바와 같이, 본 발명예의 액정표시장치도 상기 종래예의 액정표시장치와 마찬가지로, 칼라필터 기판(1)과 대향기판(2)과 이들 양기판(1),(2)사이에 충전된 액정(3)으로 주로 구성되어 있다.An embodiment of the present invention will be described below with reference to FIG. As is clear from this figure, the liquid crystal display device of the present invention is also filled between the color filter substrate 1, the counter substrate 2, and these two substrates 1, 2, like the liquid crystal display device of the prior art. It consists mainly of the liquid crystal 3.

칼라필터 기판(1)은 투명기판(4)과 그 투명기판(4)의 평면에 형성된 투명전극(5)과 그 투명전극(5)상에 전작된 칼라필터(6)와 그 칼라필터(6)의 간극부에 형성된 차광막(7)과 이들 칼라필터(6) 및 차광막(7)의 표면에 피착된 무기 유전체 막(9)과 그 무기 유전체 막(9)상에 피착된 투명전극막(10)으로 이루어진다. 한편, 대향기판(2)은 투명기판(11)과 그 투명기판(11)의 편면에 피작된 투명전극(12)으로 이루어진다. 그와 같이 본 발명예의 액정표시장치는 종래예의 액정표시장치에 있어서, 칼라필터(6) 및 차광막(7)의 표면에 피착되어 있던 평탄화막을 생략한 것을 특징으로 한다.The color filter substrate 1 includes the transparent substrate 4, the transparent electrode 5 formed on the plane of the transparent substrate 4, the color filter 6 prepared on the transparent electrode 5, and the color filter 6 Shading film 7 formed in the gap portion of the < RTI ID = 0.0 >) < / RTI > and the inorganic dielectric film 9 deposited on the surface of the color filter 6 and the light blocking film 7 and the transparent electrode film 10 deposited on the inorganic dielectric film 9 thereof. ) On the other hand, the counter substrate 2 is composed of a transparent substrate 11 and a transparent electrode 12 formed on one side of the transparent substrate 11. As described above, the liquid crystal display device of the present invention is characterized in that the planarization film deposited on the surfaces of the color filter 6 and the light shielding film 7 is omitted in the liquid crystal display device of the prior art.

투명기판(4),(11)은 유리판 등의 경질 투명재료를 가지고 구성된다. 또, 투명전극(5), 투명전극막(10) 및 투명전극(12)은, ITO(인듐 산화물) 등의 투명 도전재료를 가지고 구성된다. 이들의 각 투명전극 중, 투명전극(5) 및 투명전극(12)은, 일정한 피치간격으로 서로 평행하게 배열된 일직선상으로 연장되는 가늘고 긴 도전막의 집합을 가지고 형성된다. 이것에 대하여 투명전극막(10)은 무기유전체 막(9)상에 균일한 두께로 피착된다.The transparent substrates 4 and 11 are made of hard transparent materials such as glass plates. Moreover, the transparent electrode 5, the transparent electrode film 10, and the transparent electrode 12 are comprised with transparent conductive materials, such as ITO (indium oxide). Of these transparent electrodes, the transparent electrode 5 and the transparent electrode 12 are formed with a set of elongated conductive films extending in a straight line arranged in parallel with each other at a constant pitch interval. In contrast, the transparent electrode film 10 is deposited on the inorganic dielectric film 9 with a uniform thickness.

칼라필터(6)는, 상기 투명전극(5)의 각각에, 전착법, 염색법, 인쇄법등의 방법을 이용하여 형성된다. 또한, 전착법 이외의 칼라필터 형성법을 이용하는 경우에는, 투명전극(5)은 불필요하다.The color filter 6 is formed on each of the transparent electrodes 5 using a method such as electrodeposition, dyeing, printing, or the like. In addition, when using the color filter formation method other than the electrodeposition method, the transparent electrode 5 is unnecessary.

차광막(7)은 칼라필터(6)의 간극부로부터 광이 노출되는 것을 방지하기 위한 것으로, 흑색 색소를 혼합하여 감광성 물질 등에 의하여 형성된다.The light shielding film 7 is for preventing light from being exposed from the gap portion of the color filter 6, and is formed of a photosensitive material by mixing black pigment.

무기 유전체 막(9)은, 투명전극막(10)의 밀착성을 개선하기 위하여 설치되는 것으로, 예를들면 SiO2등의 투명한 무기유전체에 의하여 형성된다. 그 막 두께는, 필요에 따라 임의로 설정 할 수 있으나, 막 두께가 클수록 칼라필터(6) 및 차광막(7)의 표면을 평탄화할 수 있으므로 유리하다.The inorganic dielectric film 9 is provided to improve the adhesion of the transparent electrode film 10, and is formed of, for example, a transparent inorganic dielectric such as SiO 2 . Although the film thickness can be arbitrarily set as needed, since the film thickness is large, the surface of the color filter 6 and the light shielding film 7 can be planarized, and it is advantageous.

액정(3)으로서는, 액정분자 장축이, 상기 투명전극막(10)과 투명전극(12) 사이에서 90° 연속적으로 비틀리는 네마틱액정이 충전된다. 이것에 의하여 TN형의 액정표시장치가 형성된다.As the liquid crystal 3, a nematic liquid crystal in which the major axis of the liquid crystal molecules is twisted 90 degrees continuously between the transparent electrode film 10 and the transparent electrode 12 is filled. As a result, a TN type liquid crystal display device is formed.

TN형의 액정표시장치에 있어서는, STN형의 액정표시장치와 같이 갭간격을 엄밀하게 규제하지 않아도 양호한 표시품질이 얻어지므로, 칼라필터(6) 및 차광막(7)의 표면에 평탄화막을 형성하지 않더라도 양호한 표시품질이 얻어진다. 이와 같이 평탄화막을 생략하면, 제조공정을 현저히 간략화할 수 있고, 액정표시장치이 제조비용을 저감시킬 수 있다. 한편, 무기 유전체 막(9)상에 투명전극막(10)을 형성하므로, 투명전극막(10)의 밀착성이 열화되는 등 다른 문제를 일으키는 일도 없다.In the TN type liquid crystal display device, as in the STN type liquid crystal display device, good display quality can be obtained without strictly restricting the gap interval, so that even if a flattening film is not formed on the surface of the color filter 6 and the light shielding film 7. Good display quality is obtained. If the flattening film is omitted in this manner, the manufacturing process can be significantly simplified, and the liquid crystal display device can reduce the manufacturing cost. On the other hand, since the transparent electrode film 10 is formed on the inorganic dielectric film 9, the adhesiveness of the transparent electrode film 10 is not deteriorated.

또한, 제 1도 및 그 설명은 본 발명의 일 실시예를 나타내는 것으로, 본 발명의 요지가 이것에 한정되는 것은 아니다. 예를들면, 각 부의 재질이나 배열은 상기 실시예에 구속되지 않고, 필요에 따라 적정히 변경가능하고, 차광막의 유무도 필요에 따라 적절히 선택할 수 있다.1 and the description show one embodiment of the present invention, and the gist of the present invention is not limited thereto. For example, the material or arrangement of each part is not limited to the above embodiment, and can be appropriately changed as necessary, and the presence or absence of a light shielding film can be appropriately selected as necessary.

이상 설명한 바와 같이, 본 발명에 의하면 평탄화막을 생략하였으므로, 제조공정을 현저히 간략화할 수 있어, 액정표시장치의 제조비용을 저감시킬 수 있다. 한편, 투명전극 사이에 90°비틀리는 네막틱액정을 충전하여 TN형의 액정표시장치로 하므로, 평탄화막을 생략하여도 양호한 표시품질이 얻어짐과 동시에, 무기유전체 막상에 투명전극막을 형성하므로 투명전극막(10)의 밀착성도 양호하게 유지된다.As described above, according to the present invention, since the flattening film is omitted, the manufacturing process can be significantly simplified, and the manufacturing cost of the liquid crystal display device can be reduced. On the other hand, the TN type liquid crystal display device is filled with a nematic tick liquid that is twisted by 90 ° between the transparent electrodes to obtain a good display quality even when the planarization film is omitted, and a transparent electrode film is formed on the inorganic dielectric film. The adhesion of the film 10 is also maintained well.

Claims (1)

칼라필터 기판과 대향기판 사이에 액정을 충전하여 이루어지는 액정표시장치에 있어서, 상기 칼라필터 기판으로서, 칼라필터상에 상기 칼라필터 표면을 평탄하게 하는 막두께로 이루어지는 무기 유전체 막이 직접 형성되고, 그 무기 유전체 막상에 투명전극막이 형성된 것을 사용함과 동시에, 이 칼라필터 기판에 형성된 상기 투명전극막과 상기 대향기판에 형성된 투명전극막 사이에, 액정분자 장축이 이들의 투명전극막 사이에서 90°연속적으로 비틀리는 네마틱액정을 충전한 것을 특징으로 하는 액정표시장치.In a liquid crystal display device in which a liquid crystal is filled between a color filter substrate and an opposing substrate, an inorganic dielectric film having a film thickness for flattening the surface of the color filter is formed directly on the color filter as the color filter substrate. While using a transparent electrode film formed on the dielectric film, a liquid crystal molecule long axis is twisted 90 degrees continuously between these transparent electrode films between the transparent electrode film formed on the color filter substrate and the transparent electrode film formed on the counter substrate. The liquid crystal display device, characterized in that the nematic liquid crystal filled.
KR1019960000685A 1995-01-17 1996-01-16 Liquid crystal display device KR100215312B1 (en)

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